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Lazulite
Lazulite

Kyanite
Kyanite



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Lazulite
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Kyanite

Lazulite and Kyanite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.04-3.17
Uneven
{001} Indistinct, {???} Indistinct
5.5
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
 
Brittle
-
-
3.53-3.65
Splintery
[100] perfect [010] imperfect with 79° angle between
4-7
Al2SiO5

Lazulite and Kyanite Chemical Formula

While comparing Lazulite and Kyanite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Lazulite and Kyanite chemical formula.

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Lazulite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Lazulite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Lazulite Vs Kyanite during the identification of gemstone. Specific gravity of Lazulite is whereas that of Kyanite is .